A&D AD-8922A User manual

AD-8922A

Remote Controller

INSTRUCTION MANUAL

1WMPD4002022

No part of this publication may be reproduced, transmitted, transcribed, or translated

into any language in any form by any means without the written permission of A&D

Company Ltd.

The contents of this manual and the specifications of the instrument covered by this

manual are subject to change for improvement without notice.

1

CONTENTS

１ INTRODUCTION .................................................................................................................................... 2

１-１ Outline .......................................................................................................................................................2

１-２ Applicable Instruments ..............................................................................................................................2

１-３ Compliance................................................................................................................................................3

２ DESCRIPTION OF EACH PART ............................................................................................................ 4

２-１ Display .......................................................................................................................................................5

２-２ Key Operation............................................................................................................................................5

２-３ Connectors ................................................................................................................................................5

３ GETTING READY................................................................................................................................... 6

３-１ Setting the Weighing Instrument and the AD-8922A.................................................................................6

３-２ Connecting the AD-8922A .........................................................................................................................6

３-３ Turning the Power on ................................................................................................................................7

３-４ Operation ...................................................................................................................................................7

３-５ Example of Use .........................................................................................................................................7

４ FUNCTION SETTINGS........................................................................................................................... 9

４-１ Display and Keys.......................................................................................................................................9

４-２ Function Table .........................................................................................................................................10

４-３ Initialization ..............................................................................................................................................12

５ TROUBLESHOOTING.......................................................................................................................... 13

６ SPECIFICATIONS ................................................................................................................................ 14

７ RS-232C SERIAL INTERFACE ............................................................................................................ 15

８ EXTERNAL DIMENSIONS ................................................................................................................... 16

９ OPTIONS.............................................................................................................................................. 17

９-１ Confirming the AD-8922A Software Version............................................................................................17

９-２ Installing the Option.................................................................................................................................18

１０ BCD OUTPUT (AD-8922A-01) ......................................................................................................... 19

１０-１ BCD Output Specifications...................................................................................................................19

１０-２ Setting of the Decimal Point Position...................................................................................................24

１１ COMPARATOR OUTPUT (AD-8922A-04)........................................................................................ 25

１１-１ Comparator Output Specifications .......................................................................................................25

１１-２ Using the Comparator Output ..............................................................................................................27

１１-３ Setting the Upper and Lower Limit Values...........................................................................................28

１２ CURRENT LOOP INPUT (AD-8922A-05)......................................................................................... 30

１２-１ Current Loop Input Specifications ........................................................................................................30

１３ ANALOG OUTPUT (AD-8922A-06).................................................................................................. 32

１３-１ Analog Output Specifications...............................................................................................................32

１３-２ Function setting....................................................................................................................................34

１３-３ Switching Output Voltage.....................................................................................................................35

１３-４ Output Voltage Fine Adjustment ..........................................................................................................35

１３-５ Fixed Output Voltage ...........................................................................................................................36

１４ ACCESSORIES (CABLE LIST)........................................................................................................ 37

2

１ INTRODUCTION

The AD-8922A is a remote controller. Read this manual completely before using the AD-8922A in order to

ensure a sufficient understanding for proper use.

１-１ Outline

The AD-8922A is connected to an A&D manufactured weighing instrument, using the RS-232C serial interface.

 Displays the weighing data transmitted by the weighing instrument.

 Key operations remotely control the weighing instrument.

(Entering the function setting mode of the weighing instrument is not available. Available operations

depend on the weighing instrument used. See Table 2 in "1-2 Applicable Instruments".)

 The data the AD-8922A receives can be output, using the RS-232C serial interface. So, external

devices such as a personal computer or a printer can be connected to the AD-8922A.

 Can be panel-mounted.

 Various options such as BCD output, comparator output, current loop input and analog output are

available. For details, refer to "9 OPTIONS" and the following relevant chapters.

 When connected to the AD-4212C, the AD-8922A can change the response characteristic, calibrate

the AD-4212C using the external weight, and both instruments can share power.

(Power can be supplied to both instruments by plugging the AC adapter into either the AD-4212C or

the AD-8922A. For details, refer to "3-3 Turning the Power on ".)

１-２ Applicable Instruments

Applicable weighing instruments and what is required are shown in the table below.

Table 1 Applicable weighing instruments and what is required

What is required to connect to

a weighing instrument

Cable required to connect to

an external device such as

Weighing

instrument Option for the

instrument

Communications cable*

(Length 2 m)

Personal

computer

AD-8121B

compact printer

AD-4212C None

(D-Sub 9-pin)

None

(Use the cable provided

for AD-4212C)

GX, GF, GX-K,

GF-K, GP, FP,

AD-4212A/B, GR, HR

None

(D-Sub 25-pin) AX-KO1710-200

EK-i, EW-i, FC-i,

FC-Si, GH, HR-i,

FZ-i, FX-i

None

(D-Sub 9-pin) AX-KO2466-200

EK-G, EK-H,

ET-W, EW-G

OP-03

(D-Sub 25-pin) AX-KO1710-200

HV-G, HV-WP,

HW-G, HW-WP

None

(DIN 7-pin) AX-KO1786-200

FG OP-03

(DIN 7-pin) AX-KO1786-200

FS, FS-KL OP-03

(DIN 8-pin) AX-KO1786-200

FG-L, FG-M OP-23

(DIN 8-pin) AX-KO1786-200

AX-KO1786-200 AX-KO462-200

Note (*) - The standard communications cable is AX-KO1710-200. A substitute communications

cable may be provided as specified when ordering the AD-8922A.

- When connecting to the AD-4212C, use the AX-KO3590-500 (5m) cable, provided as standard

for the AD-4212C.

3

The AD-8922A functions in two ways as follows, depending on the weighing instrument used:

 A remote controller that displays the weighing data and remotely controls the weighing instrument.

 A remote display that displays the weighing data.

Available key operations depend on the weighing instrument used, as shown below. Set the command set

"C5et" of the function setting, appropriate to the weighing instrument.

Table 2 Applicable weighing instruments and key operations

AD-8922A key Weighing

instrument ON:OFF CAL SAMPLE PRINT MODE RE-ZERO

Command

set *5

AD-4212C

Calibrates

using the

external

mass.

Switches

the

response

characteristic.

C5et 1

GX, GX-K, GP,

GH, ET-W, FZ-i C5et 1

GR

Calibrates

using the

internal

mass. C5et 2

GF, GF-K,

EK-H,

AD-4212A/B, HR,

HR-i, FX-i

Turns the

weighing

instrument

display

on or off.

*1

⎯

Switches

the

minimum

display.

*2

C5et 3

EK-i, EW-i ⎯ ⎯ ⎯

Switches

the unit

displayed.

*4

Sets the

display to

zero.

C5et 4

EK-G, EW-G, FC-i,

FC-Si, FG, FG-L,

FG-M, FP, FS, FS-KL,

HV-G, HV-WP, HW-G,

HW-WP

⎯ ⎯ ⎯

Outputs

the

received

data to

an

external

device.

*3

⎯ ⎯ C5et 0

Note: "⎯" in the table indicates that the key operation is not available.

*1: Switching the standby or weighing mode is available for the AD-4212C.

*2: Not applicable to the counting mode and the percent mode. Switching the minimum display

is not available for the ET-W.

*3: Available when the AD-8922A is in key mode ("out 1" or "out 2" of the function setting).

*4: Not available for the ET-W and AD-4212

*5: AD-8922A function settings

１-３Compliance

１-３-１ Compliance with FCC Rules

Please note that this equipment generates, uses and can radiate radio frequency energy. This

equipment has been tested and has been found to comply with the limits of a Class A computing

device pursuant to Subpart J of Part 15 of FCC rules. These rules are designed to provide

reasonable protection against interference when equipment is operated in a commercial

environment. If this unit is operated in a residential area, it may cause some interference and under

these circumstances the user would be required to take, at his own expense, whatever measures

are necessary to eliminate the interference.

(FCC = Federal Communications Commission in the U.S.A.)

１-３-２ Compliance with EMC Directives

This device features radio interference suppression in compliance with valid EC

Regulation 89/336/EEC.

4

２ DESCRIPTION OF EACH PART

Note: Please confirm that the AC adapter type is correct for your local voltage and receptacle

type.

A substitute communications cable, listed below, may be provided as specified when

ordering the AD-8922A.

• D-Sub 9-pin to D-Sub 9-pin (AX-KO2466-200)

• DIN 7-pin to D-Sub 9-pin (AX-KO1786-200)

When connecting to the AD-4212C, use the cable provided for the AD-4212C.

Do not use the cable provided for the AD-8922A.

Rear

Connector

to the weighing instrument

(D-Sub 9-pin )

Connector

to the external device

Display

Keys

Angle adjustment knob

AC adapter

jack Grounding terminal

Accessories

AC adapter AC adapter identification label

See Note below.

Communications cable

to connect to a weighing

instrument (Length: 2 m, 1 pc.)

D-Sub 25-pin to D-Sub 9-pin

(AX-KO1710-200)

(DIN 8-pin )

Stand

Main unit

5

２-１ Display

 Displays the weighing data and the unit (or mode) received. The unit (or mode) may be different from

that of the weighing instrument.

 Turns on the stabilization indicator when the header of the weighing data received is "ST", "QT", or "WT".

 Turns on the comparator indicator when the comparison results are added to the data received.

Applicable to GX-K, GF-K, GP and AD-4212A/B. (Function setting "Cp-r")

 When nothing has been received for two seconds or more, the bar display [- - - - -] appears. By

changing the function setting, the previous data received is displayed until the next data is received

(Hold display). During the hold display, the hold indicator is turned on.

Note: When the data is in eight digits, the highest-order digit is displayed in the upper left

corner as shown below.

For example, if the weighing data is 101.00000 g, the display is like .

２-２ Key Operation

Available key operations to control the weighing instrument depend on the weighing instrument used. For

details, see Table 2 in " 1-2 Applicable Instruments".

Set the command set "C5et" of the function setting, appropriate to the weighing instrument.

To enter the function setting mode of the AD-8922A, press and hold the ON:OFF key and press the CAL

key.

The weighing instrument has its own function settings and the AD-8922A can not change those settings.

２-３ Connectors

２-３-１Connector to the weighing instrument (BALANCE / SCALE) ... D-Sub 9-pin male

Used to connect to the weighing instrument. The cable used for connection depends on the instrument.

For details, refer to the instruction manual of the weighing instrument.

２-３-２Connector to the external device (PC / PRINTER) ... DIN 8-pin female

Used to connect to an external device such as a personal computer or a printer (AD-8121B). The cable

used for connection depends on the device. For details, refer to the instruction manual of the device.

6

３ GETTING READY

３-１ Setting the Weighing Instrument and the AD-8922A

1. Set each item as shown below. Set the same value for the weighing instrument and the AD-8922A.

Table 3

Item Weighing instrument AD-8922A

Baud rate 600, 1200, 2400, 4800, 9600. 19200 bps

Data bits, Parity bit 7 bits - EVEN, 7 bits - ODD, 8 bits - NONE

Stop bits 1 bit or 2 bits

Terminator <CR> or <CR><LF>

Data format A&D standard format ⎯

Communication control No RTS/CTS control ⎯

Data output mode Stream mode* ⎯

Items in bold face type: Factory settings for both the AD-8922A and the weighing instrument.

* When connected to an external device, the settings can be changed to suit the use.

2. Set the command set "C5et" of the function setting, appropriate to the weighing instrument. See Table 2

in "1-2 Applicable Instruments".

Note: Some items may not be available for the instrument used. For details on setting, refer to

the instruction manual of each weighing instrument.

When connected to an external device such as a personal computer or a printer, set the output

mode "out" and time out "Hold" of the function setting, and set the data output mode of the

weighing instrument, appropriate to the use. (See Table 3 in "3-5 Example of Use".)

３-２ Connecting the AD-8922A

For information on cables required for connection, see Table 1 in " 1-2 Applicable Instruments".

Connect the weighing instrument to the AD-8922A D-Sub 9-pin connector.

Connect an external device such as a personal computer or a printer to the AD-8922A DIN 8-pin

connector.

7

３-３ Turning the Power on

Insert the AC adapter plug into the AC adapter jack located on

the rear of the AD-8922A. Plug the AC adapter into an

appropriate electrical outlet.

When connected to the AD-4212C, power can be supplied to

both instruments by plugging the AC adapter into either the

AD-4212C or the AD-8922A.

(Both instruments can have their AC adapter connected at the

same time.)

３-４ Operation

 The AD-8922A displays the weighing data transmitted by the weighing instrument used.

 The AD-8922A key operations remotely control the weighing instrument.

Available operations depend on the weighing instrument. See Table 2 in "1-2 Applicable Instruments".

３-５ Example of Use

 A personal computer is connected to the AD-8922A and the weighing data can be transmitted to the

personal computer, using Windows communication tools (WinCT).

 To protect against inadvertent operations, the AD-8922A keys can be disabled. (Function setting

"C5et 0").

 When nothing has been received for two seconds or more, the bar display [- - - - -] appears. By

changing the function setting, the previous data received is displayed until the next data is received

(Hold display). (Function setting "Hold 1 ")

 About details on the settings of the weighing instrument or the external device, see the relevant

instruction manual.

External device

AD-8121B

Personal computer

PLC

Weighing

instrument

BALANCE/SCALE

Used to connect to

the weighing instrument

PC/PRINTER

Used to connect to

the external device

AD-8922A

8

Table 4 Use of the AD-8922A

Example

of use

Weighing

instrument AD-8922A setting External device

setting

Through mode "out 0"

Sends all of the

received weighing

data to the external

device.

[AD-8121B]

MODE 2

(Prints data in

conjunction with

theAD-8121B

DATA key or

interval setting.)

Key mode 1 "out 1"

When the AD-8922A

PRINT key is

pressed, sends the

latest weighing data

received to the

external device,

regardless of the data

status.

Stream mode

(Outputs the

weighing data

continuously.)

Key mode 2 "out 2"

When the AD-8922A

PRINT key is

pressed, sends the

latest weighing data

received to the external

device when the data is

stable.

[AD-8121B]

MODE 1

(Prints data when

the AD-8121B

DATA key is

pressed.)

Monitors the

weighing data

of the

weighing

instrument

remotely.

Key mode or

Auto print mode

(Outputs the

weighing data

when the key

is pressed or

outputs the data

automatically

when stable.)

Through mode "out 0"

Sends all of the

received weighing

data to the external

device.

[AD-8121B]

MODE 1

(Prints data

according to the

data output

mode of the

weighing

instrument.)

Monitors the

weighing data

of the

weighing

instrument that

is built into a

weighing system.

Command

mode *

(Outputs the

weighing data

by the data

request

command.)

Through mode "out 0"

Sends all of the

received weighing

data to the external

device.

[Personal computer

or PLC]

(The program to

control the

device is

required.)

* The command mode may not be available for weighing instruments of which command is always

valid.

9

４ FUNCTION SETTINGS

The function settings specify the parameters for the AD-8922A performance. These parameters stored,

even if the AC adapter is removed, are maintained in non-volatile memory.

The function menu consists of two layers. The first layer is the “Class” and the second layer is the “Item”.

Each item is selected by the SAMPLE key. The parameter of the selected item is changed by the

RE-ZERO key. Finally, the parameter is stored and is enabled by the PRINT key.

Example

This example sets “9600 bps” for “Baud rate” and “8 bits NONE” for “Data bits, parity bit”.

Note: Use much care when changing parameters. The AD-8922A may not function properly

when the settings and operational environment are not appropriate.

４-１ Display and Keys

Table 5

Display/Key Description

The symbol “ ” indicates that the parameter displayed is in effect.

Selects the class or item in the function setting mode.

Changes the parameter.

When a class is displayed, moves to an item in the class.

When an item is displayed, stores the new parameter and displays the next class.

When an item is displayed, cancels the new parameter and displays the next class.

When a class is displayed, exits the function setting mode.

10

４-２ Function Table

Table 6

Class Item

Parameter

Description

0

Set 0

When connected to EK-G, EW-G,

FC-i, FC-Si, FG, FP, FS, FS-KL

HV-G, HV-WP, HW-G or HW-WP.

Disables the AD-8922A keys for use

as a remote display.

1 Set 1 When connected to ET-W, GH, GP,

GX, GX-K, FZ-i, AD-4212C.

2 Set 2 When connected to a GR series

balance.

3 Set 3 When connected to GF, GF-K,

AD-4212A/B, HR, HR-i. EK-H, FX-i

C5et *

Command set

4

Set 4 When connected to an EK-i/EW-i

series balance.

0

Through mode

Always outputs the data received by

the D-Sub 9-pin connector, to the

DIN 8-pin connector.

1 Key mode 1

Outputs the latest data received by

the D-Sub 9-pin connector, to the

DIN 8-pin connector, when the

AD-8922A PRINT key is pressed.

out

Output mode

2 Key mode 2

Outputs the latest stable data

received by the D-Sub 9-pin

connector, to the DIN 8-pin

connector, when the AD-8922A

PRINT key is pressed.

0

Bar display Bar display if nothing has been

received for two seconds or more.

Hold

Timeout 1 Hold display

Displays the previous data received

if nothing has been received for two

seconds or more, and turns on the

hold indicator.

0

Not used No buzzer upon data receipt.

1 At intervals

Sounds buzzer when the data is

received with an interval of two

seconds or more.

bep

Data receipt

buzzer

2 Used Sounds buzzer upon each data

receipt.

-

Not set

0

dpp

Position of

decimal point 6

Set

Sets the decimal at a specific position. When

changing the minimum display digit, pressing

SAMPLE key does not change the decimal

point position. (For details, refer to “9-2”.)

0

No function

The SAMPLE key does not function.

fnc

Environment

Display

5apl

Function of the

SAMPLE key 1 Function

The SAMPLE key will function.

0

600 bps

1 1200 bps

2 2400 bps

3 4800 bps

4

9600 bps

5if

Serial

interface

bp5

Baud rate

5 19200 bps

Choose a parameter appropriate to

the weighing instrument.

When the AD-8121B compact

printer is to be connected, leave the

factory settings of the AD-8922A as

is and set the weighing instrument.

Factory setting

* See Table 2 in "1-2 Applicable Instruments" to set the command set "C5et" of the function setting,

appropriate to the weighing instrument.

11

Class Item

Parameter

Description Class

0

7 bits - EVEN

1 7 bits - ODD

btpr

Data bits

Parity bit 2 8 bits - NONE

0

1 bit

5top

Stop bits 1 2 bits

0

CR/LF

5if

Serial

interface

Crlf

Terminator 1 CR

Choose a parameter appropriate to

the weighing instrument.

When the AD-8121B compact

printer is to be connected, leave the

factory settings of the AD-8922A as

is and set the weighing instrument.

0

ON when 0

data

data 1 ON when 1

0

ON when positive or 0

polp

Polarity 1 ON when negative

0

ON when the stabilization indicator is turned off

5tbp

Stability 1 ON when the stabilization indicator is turned on

0

OFF when e or -e

0erp

Over 1 ON when e or -e

0

Data refresh is complete when ON → OFF

5trp

Strobe 1 Data refresh is complete when OFF → ON

0

Approx. 10 ms

1 Approx. 20 ms

5trt

Strobe pulse

width 2 Approx. 50 ms

Strobe pulse width after data refresh

0

BUSY input function

bcd

BCD

Available only

when the

BCD output

is installed.

5trp

(Input terminal

function) 1 RE-ZERO input function

0

No comparison

1 Comparison, excluding "near zero" when the value is

stable or overloaded

2 Comparison, including "near zero" when the value is

stable or overloaded

3 Continuous comparison, excluding "near zero"

4

Continuous comparison, including "near zero"

Cp

Comparator

mode

5 Contact-outputs the second header information of the data

received. (Applicable to AD-4212A, GP and GX-K)

0

OFF

bep

LO buzzer 1 ON

Selects whether or not to sound the buzzer

when LO.

0

OFF

bep-

OK buzzer 1 ON

Selects whether or not to sound the buzzer

when OK.

0

OFF

Cp fnc

Comparator

Available only

when the

comparator

output is

installed.

bep

HI buzzer 1 ON

Selects whether or not to sound the buzzer

when HI.

0

2-digt

output

Converts the consecutive 2 digits, with the digit

selected in 5el as the least, to voltage and outputs.

an

Analog output

mode 1 3-digt

output

Converts the consecutive 3 digits, with the digit

selected in 5el as the least, to voltage and outputs.

0

Selects the first digit as the least.

1 Selects the second digit as the least.

2 Selects the third digit as the least.

3

Selects the fourth digit as the least.

4

Selects the fifth digit as the least.

aout

Analog

output

Available only

when the

analog output

is installed.

5el

Analog output

digit selection

5 Selects the sixth digit as the least.

Factory setting

12

４-３ Initialization

Initialization restores the AD-8922A function settings to factory settings.

1. Connect the AC adapter. The bar display or the weighing data

display appears.

2. While pressing and holding the ON:OFF key, press the PRINT

key. "Clr" appears in the display.

3. Press the PRINT key. (To cancel the operation, press the CAL

key.)

4. Press the RE-ZERO key to select "go".

5. Press the PRINT key to perform initialization.

After initialization, the bar display or the weighing data display

appears.

13

５ TROUBLESHOOTING

Shown below is a list of various phenomena of the AD-8922A and the remedies.

Table 7

Phenomenon Cause and remedy

error10 appears.

• The communications settings of the AD-8922A and the weighing

instrument are not the same.

Check the settings.

error11 appears.

• The weighing instrument data format is incorrect.

Set the data format to A&D standard format. Also check whether or not

data other than weighing data is output.

The bar display

remains and no

weighing data

appears.

• Is the weighing instrument in the stream mode?

Only the stream mode displays the weighing data continuously. Other

modes display the data only when received. When the hold display is

selected in the AD-8922A function setting, the previous data received is

displayed until the next data is received.

• Are the communications settings correct?

• Is the cable correct?

The display flickers.

• Electrical noises may affect the display.

Using the grounding terminal located on the rear of the AD-8922A,

ground the AD-8922A.

14

６ SPECIFICATIONS

Power supply : AC adapter

(Please confirm that the AC adapter type is correct for your local voltage

and receptacle type.)

Power consumption : Approx.11 VA (Including the AC adapter, AD-8922A: approx. 1.5 VA)

Transmission system : RS-232C

Baud rate : 600, 1200, 2400, 4800, 9600, 19200 bps

Refresh rate : Approx. 10 times/second (When Baud rate is 2400 bps or greater).

Applicable connectors : D-Sub 9-pin (Male) to connect to the weighing instrument

DIN 8-pin (Female) to connect to an external device

Dimensions : 238 (W) x 132 (D) x 170 (H) mm

Mass : Approx. 1.0 kg

Standard accessories : AC adapter, Communications cable (Approx. 2 m)

(Please confirm that the AC adapter type is correct for your local voltage

and receptacle.)

15

７ RS-232C SERIAL INTERFACE

RS-232C

Transmission system : EIA RS-232C

Transmission form : Asynchronous, bi-directional, half duplex

Data format : Baud rate : 600, 1200, 2400, 4800, 9600, 19200 bps

Data bits : 7 bits or 8 bits

Parity bit : EVEN, ODD (Data bits 7 bits)

NONE (Data bits 8 bits)

Stop bits : 1 bit or 2 bits

Code : ASCII

Terminator : <CR> or <CR><LF>

Circuit

Connection to the weighing instrument Connection to an external device

D-Sub 9-pin DIN 8-pin

No.

Signal

name Direction Description Pin

No.

Signal

name Direction Description

1 (Vs) ⎯ Used internally 1 FG ⎯ Frame ground

2 RXD Input Receive data 2 RXD Input Receive data

3 TXD Output Transmit data 3 TXD Output Transmit data

4 ⎯ ⎯ N.C. 4 RTS Input Request to send

5 SG ⎯ Signal ground 5 SG ⎯ Signal ground

6 DSR Input Data set ready 6 CTS Output Clear to send

7 RTS Output Request to send 7 DSR Output Data set ready

8 CTS Input Clear to send 8 ⎯ ⎯ N.C.

9 (Va) ⎯ Used internally

(The signal names except TXD and RXD

apply to the DTE such as a personal

computer.)

(AD-8922A is a DTE. Connects to a DCE

such as a weighing instrument using a

straight through cable.)

When making the cable yourself, do no

t

connect to the internally used terminals.

9876

6

1

4

2

5

3

7

SG

CTS

RTS

DSR

FG

TXD

RXD

SG

AD-8922A interior

To a weighing instrument To an external device such as

a personal computer or a printer

54321

TXD

RXD

AD-8922A interior

8

Inch screw thread

(#4-40UNC)

(Va)

(Vs)

16

８ EXTERNAL DIMENSIONS

Unit: mm

238

130

132

57

170

192

185

96

91

108

72

100

17

９ OPTIONS

The AD-8922A has various options available as follows.

For details on each option, refer to the relevant chapter.

 AD-8922A-01 BCD output

Outputs the weighing data received from the weighing instrument using the RS-232C serial interface,

in BCD format.

 AD-8922A-04 Comparator output

Compares the weighing data received from the weighing instrument using the RS-232C serial

interface with the upper or lower limit value and contact-outputs the results.

When connected to the AD-4212C, the both instruments can share power.

 AD-8922A-05 Current loop input

Receives the current loop output from the weighing instrument and displays the weighing data.

The weighing data received can be output using the RS-232C serial interface.

The AD-4212C does not have current loop output. Therefore, this option can not be used.

 AD-8922A-06 Analog output

Converts the specified digits of the weighing data received from the weighing instrument, using the

RS-232C serial interface, into voltage and outputs the value.

９-１ Confirming the AD-8922A Software Version

Before installing an option, confirm the AD-8922A software version.

The software version is displayed as "px.xx" for approx. 1 second before entering the function setting

mode.

18

９-２ Installing the Option

Install the option as shown below. The installation procedure is the same for all the options.

1. Disconnect the AC adapter.

2. Remove the two screws and pull out the RS-232C board

provided as standard as shown in the illustration.

3. Insert the option board, along the guides on the left and

right sides.

4. Using the two screws removed in step 2, fasten the option

board.

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A&D AD-8922A User manual

A&D AD-8922A User manual

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